Hi Ajeet, Thanks for the help. The boards are now sampling at 4 GHz with a 10 MHz external reference to the TIDA-01021 , but there are still some issues. After loading the .ini firmware in HSDC Pro to the ADCs, sometimes the ADC will not be able to detect the trigger and timeout. By reloading the .ini multiple times, eventually it will be able to detect the trigger and record data. When the boards do successfully trigger, the captures have inconsistent delay between the boards. It seems that the delay between the boards is -2 ns some times and 8 ns other times. Where could this discrete 10 ns of timing inconsistency be coming from? Why is the board sometimes not able to detect the trigger after loading the .ini file and is it related to the timing inconsistency? Let me know if you need any more info or have any questions. Thank you, Alex
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